Basket-mounting stone-setting tool



E. HANSON BASKET MOUNTING STONE SETTING TOOL Nov. 10, 1925- Filed Aug.'13. 1924 gwixmtoc the same Patented Nov. 10, 1925.

UNITED STATES EMBRIK HANSON, or ArrLE'roN. MINNESOTA.

BASKET-MOUNTING STONE-SETTING TOOL.

Application filed August 13, 1924.. Serial No. 731,745.

To all whom it may concern.

Be it known that I, EMBRIK HANSON,' EL

citizen of the United States, residing at Appleton, inthe county ofSwift and State of Minnesota, have invented certain new and usefulImprovements in Basket-Mounting Stone-Setting Tools, of which thefollowing is a specification.

This invention relates to new and useful improvements in jewelers toolsand is more particularly adapted to a device for use in connection withthe boring of holes for receiving the stone or set in rings.

One of thejimportant objects ofthe present invention is to provide ajewelers tool of the above mentioned character, which is of such aconstruction as to enable the size of the hole to be bored to bevaried'in accordance with the size'of the stone or set to be supportedtherein. I

A further object of the invention is to provide a jewelers tool of theabove mentioned character, which may be. readily assembled ordisassembled without theloss of ,any considerable length of time orlabor, the

device being further simple in construction, inexpensive, strong anddurable andfurthermore adapted for the purposes for which 7 it isdesignated.

In the accompanying drawing forming a part of this specification and inwhich like numerals designate like parts throughout Figure 1 is asideelevation of my improved tool.

Figure2 is a longitudinal sectional view thereof, and

Figure 3 is a transverse-section taken approximately on line 33 ofFigure 1. a

In the drawing wherein for thepurpose of illustration is shownthepreferredembodiment of my invention, the numeral 1 designates acylindrical member, the lower end of which is gradually reduced asillustrated at 2 wliereby the shoulders 3 are formed. The purpose ofthis constructionreference more particularly to Figure 2 ofv th d a ngIl lower portion of cylindrical member 1 is provided with an additionallongitudinally extending slot 5 which extends at right angles to theaforementioned slot and communicates therewith for the purposehereinafter to be more fully described. l v

Removably supported. in "the longitudinally extending slot 4 is thecutting blade 6,

stantially straight cutting edge 7 while the opposite endis providedwith the beveled cutting edges 8. This construction is clearlyillustrated in Figure 2 of the drawing.

The blade 6 is of a length, less than the length-of the longitudinallyextending slot .4 whereby the blade may be adjusted longitudinallytherein in the manner to 'be presently described. The cutting blade 6 isalso provided with a longitudinally extending slot 9 in theintermediateportion thereof for cooperation with. the slot 5 formed inthe ,lower portion of the cylindrical member .1 is the sleeve 10. Thesleeve is slitat diametrically opposite points longitudinally from therespective ends thereof to the'intermediate portion thereof asillustrated at 11 and extending laterally from the intermediate portionof the sleeve at diametrical- ,ly opposite points are the tubularinternally threaded extensions 12 and 13 respectively. Threaded into thethreaded extensions. 12

and 13 are the headed screws lt and larespectively and the inner endsthereof are reduced as illustrated at 16 and further project into thelongitudinal slot 1 for en- ,gagement with the opposed longitudinal,side edges .of the cuter blade 6 in the manner clearly illustrated inFigure 2.v

Provided 'n the sleeve 10' on one side'of openings 17 and provided inthe sleeve on theopposite sides of the-slits 11 and registhelongitudinally extending slit 11 are the tering withthe openings 17 aref'thethreaded openings such as are illustrated at 18. These openings areadapted for registry-with the longitudinal slot o provided in the lowerportion of the cylindrical member 1 and also the longitudinal slot 9provided in the cutter blade' 6. A fastening screw 19 is adapted toextend through one pair of reg istering openings in the sleeve forsecuring the latter in clamped engagement with the cylindrical member 1and for further preventing the lateral displacement of the cutter bladefrom the cylindrical member. The manner in which the fastening screw 19cooperates with the sleeve, the cylindrical member and the cutter bladedisposed therein is clearly illustrated in Figure '3 of the drawing. v V

For the purpose of limiting the upward movement of the cutter bladewithin the longitudinal slot 4 in the cylindrical body 1, the upper endof the cylindrical member is provided with a longitudinally extendingthreaded bore in which is threaded the elongated screw 20, the lower endthereof being provided with a head 21tor engagement with the upper edgeof the cutter blade in the manner clearly illustrated in Figure 2 whilethe outer end of thescrew 20 has associated therewith an operatingportion 22 for moving the head on the lower end of the screw into or outof engagement with the upper edge of the cutter blade.

The use of -my improved jewelers tool may be briefly stated as follows:Incounterboring a ring in order to enable the same to receive a set orstone, the blade 6 is inserted in the slot 4 of the cylindrical member 1so that the straight cutting edge 7 will be disposed at the lowerportion of the cylindrical member, the sleeve 10 is then placed over thelower portion of the cylindrical member and the fastening screw 19 isthreaded in proper position for clamping the sleeve around thecylindrical member. The screw 20 is then actuated to lock the bladeagainst longitudinal movement in the slot 4. By actuating the screws '14and 15 respectively, the reduced ends 16 thereof will engage "theopposite side edges of the blade in such a manner as to enable thecutting edge 7 to be-inoved inwardly or outwardly with respect to thecylindrical member so that the cutting edge will'extend "beyond thecylindrical member at the resi'ze counter-bore to be made.

The tool is then inserted in a lathe of any well known constructionwhich is used by jewelers in such a :manneras to have the cutting edgeoff the blade tree to engage the ring in order to counter-bore'the same.It is to be understood of course that the shoulder 3'Will bebrought'into engagement with the ring so that the cutter blade may havethe cutting edge thereof in proper position for producing the necessarycounter-bore. I "It can be readily seen that when the screw 14 isactuated in, one direcduced portion thereof toper'mit the properthreaded, through one pair of registering openings tion so that the samemoves inwardly in the tubular extension 12, the inner reduced end 16 ofthe screw will engage the blade and move the same against the oppositeportion of thesleeve and by actuating the opposite screw 13, the bladewill move in the opposite direction whereby the cutting edge 7 maybemoved outwardly from the lower portion of the cylindrical member 1 toaccommodate the desired size hole to be counterbored for receiving a setor stone. hen it is desired to counter-sink the ring, the blade 6 isreversed and the parts are adjusted in substantially the same manner ofthe invention and the scope of the apv pended claim.

Having thus described the what I claim is A jewelers tool comprising acylindrical member having a longitudinal slot extendinvention,

ing for the major portion thereof, said cylindrical member having alongitudinal slot in the lower portion thereotdisposed at substantiallyright angles to the afore mentioned slot, a cutter blade removably"supported in the first mentioned slot, mearis for limiting thelongitudinal movement of the blade in said slot, a sleeve fitting overthe lower portion of the cylindrical mem "ber, said sleeve havingregistering openings provided therein, one of the openings being afastening screw extending and through the longitudinal slot provided inthe lower portion of the cylindrical member and the blade in the latter,and adjusting screws carried "by the sleeve and adapted for cooperationwith the opposite side edges of the cutter blade for adjusting thecutting edge 'ofthe blade laterally with respect'to the cylindricalmember.

In testimony whereof I afii my signature.

EMBRIK HANSON.

